1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mariana [72]
3 years ago
8

Two similar pyramids A and B have surface areas of 135cm^2 and 60cm^2 respectively . The volume of pyramid A is 405 cm^3 work ou

t the volume of pyramid B

Mathematics
1 answer:
Aleks04 [339]3 years ago
5 0

Answer:

120 cm^3

Step-by-step explanation:

The surface areas are in the ratio 60 to 135  so the single dimensions are in the ratio √60 to √135.

Therefore the volumes are in the ratio (√60)^3 to  (√135)^3  or 60^3/2 to  135^3/2.

So  Volume of  Pyramid B / Volume of Pyramid A

= 60^3/2 / 135^3/2.

Therefore we have the equation  60^3/2 / 135^3/2 =  V / 405  where V is the volume of pyramid B.

V = (60^3/2 * 405) / 135^3/2

=  120  cm^3

You might be interested in
My family and I are so confused on this! Help please!
-BARSIC- [3]

Answer:

10) Correct

11) Each row is equal to 12 when you multiply them together.

12) 24

Step-by-step explanation:

12) You multiply 4*3*2 to get the volume of 24, which is also the number of cubes needed to make the shape.

<u>Please</u><u> give</u><u> brainliest</u><u> if</u><u> I</u><u> helped</u><u>!</u><u> </u><u>:</u><u>)</u>

3 0
2 years ago
Savannah bought a book for 85% of the original price. By what percent of the price was the book reduced
agasfer [191]

Answer:

15%

Step-by-step explanation:

100-85=15

100%= the total cost of the book

85%= price she bought it for

15%= the percentage the book was reduced by

7 0
3 years ago
Read 2 more answers
In the Hawaiian Beach Boy surf board vendor scenario, what if the fine was increased to $190 but the probability of a fine decre
zloy xaker [14]

Answer:

$190.50

Step-by-step explanation:

Expected value is the sum of each possible income multiplied by its probability.

There's a 5% chance that the vendor makes $200 and loses $190 (net gain of $10).

There's a 95% chance that the vendor makes $200 and loses $0 (net gain of $200).

So the expected value is:

Exp(RS) = $10 × 0.05 + $200 × 0.95

Exp(RS) = $190.50

5 0
3 years ago
The total cost of the trip can be found by adding these components: Entrance fee per student: $5(29) Lunch costs: $4(29 + 6) Bus
N76 [4]

Given:

Entrance fee per student: $5(29)

Lunch costs: $4(29 + 6)

Bus fees: $25 + 8($2 + $3)

Total cost: 5(29) + 4(35) + 25 + 8(5)

To find:

The equivalent expressions of the total cost that use the properties of operations to simplify the math.

Solution:

We have,

Total cost = 5(29) + 4(35) + 25 + 8(5)

To simply this expression, we need to write 29 and 35 in the expand form or as the sum of their place values because it is easy to multiply a number with multiply of 10 and single digit.

Total cost = 5(20+9) + 4(30+5) + 25 + 40

Therefore, the correct option is B.

6 0
2 years ago
Read 2 more answers
The diameter of a circle is 12 inches what is the area round to the nearest hundredth ​
Alisiya [41]

Answer: A≈113.1in²

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Find the circumference of this figure. Show your calculations.
    5·1 answer
  • Which of the following expressions is correct?
    15·2 answers
  • If I have 300 apples and eat 123 how many do I have left?
    14·2 answers
  • Solve for x.<br> 12x + 7 &lt; -11
    14·2 answers
  • 3x - 4y = 18<br>x + 3y = -7​
    14·1 answer
  • The image of the point (-8, 3) under a translation is (-5,2). Find the coordinates
    14·1 answer
  • Three of the angles of a quadrilateral are 1200, 480 and 920.<br> What is the size of the 4th angle?
    13·1 answer
  • Need answer to question 19 please !!
    14·1 answer
  • 1. Use precise mathematical language to justify and explain each mathematical process.
    15·1 answer
  • HELP ASAP PLS AHHHHHH
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!